Control method of a washing apparatus

Abstract

The present application belongs to the field of washing, and particularly relates to a control method of a washing device. The present application aims to solve the problems that clothes are easily entangled and seriously worn and the washing effect is not ideal when washing clothes. For this purpose, the control method of the washing device of the present application comprises a washing tub, the outside of the washing tub is provided with a motor; the inside of the washing tub is provided with a driving extrusion part and a driven extrusion part; the driving extrusion part is drivingly connected with the output end of the motor, the driven extrusion part is slidingly sleeved with the output end of the motor; the driven extrusion part is provided with a first water passage; the control method comprises the following steps: obtaining the current value of the motor, the rotation angle of the motor or the extrusion value of the driving extrusion part; based on the obtained current value of the motor, the rotation angle of the motor or the extrusion value of the driving extrusion part, the switching of the extrusion direction of the driving extrusion part is controlled. The control method of the present application can obtain good washing effect, clothes are not easily entangled, and the wearing degree is low.

Description

Technical Field

[0001] This invention belongs to the field of washing technology, specifically relating to a control method for washing equipment. Background Technology

[0002] In daily life, fully automatic washing machines have brought increasing convenience and become an indispensable household appliance. There are two common types of washing machines today: top-loading (pulsator) washing machines and front-loading (drum) washing machines. Top-loading washing machines have a pulsator structure at the bottom of the inner drum. During the washing process, the pulsator rotates in both directions, creating vortices in the water flow. This tumbling of the clothes with the water flow generates friction, achieving the washing effect. Front-loading washing machines, on the other hand, use a motor to rotate the drum. The clothes are repeatedly lifted to higher positions and then tumbled down within the drum, undergoing multiple reciprocating motions to achieve the washing effect.

[0003] However, existing top-loading washing machines have an impeller structure at the bottom of the inner drum. During the washing process, the impeller drives the clothes to rotate back and forth in both directions. This reciprocating rotation makes the clothes easily tangled, requiring manual separation after washing and often causing severe wear and tear. Front-loading washing machines, on the other hand, are relatively less effective at washing clothes.

[0004] Accordingly, there is a need in the art for a new control method for washing equipment to solve the aforementioned problems existing in the prior art. Summary of the Invention

[0005] To address the problems of tangled and severely worn clothes and unsatisfactory washing results in existing technologies, this invention provides a control method for a washing device. The washing device includes a washing tub with a motor externally mounted on it. Inside the washing tub are an active squeezing section and a squeezed section. The active squeezing section is driven to the output of the motor, allowing it to move closer to or away from the squeezed section as the motor's output rotates. The squeezed section is slidably fitted to the motor's output, preventing it from rotating with the motor's output while allowing it to rotate relative to the washing tub. A first water passage is provided on the squeezed section, through which washing water flows and washes the load. The control method includes the following steps: acquiring the motor's current value, the motor's rotation angle, or the squeezing value of the active squeezing section; and controlling the switching of the squeezing direction of the active squeezing section based on the acquired current value, rotation angle, or squeezing value.

[0006] In the preferred embodiment of the control method for the above-mentioned washing equipment, when the obtained value is the squeezing value of the active squeezing part, the step of "controlling the switching of the squeezing direction of the active squeezing part based on the obtained current value of the motor, the rotation angle of the motor, or the squeezing value of the active squeezing part" further includes: real-time detection of the squeezing value of the active squeezing part; when the squeezing value of the active squeezing part reaches its maximum value and begins to decrease for a time ΔT1, controlling the switching of the squeezing direction of the active squeezing part; wherein, 0≤ΔT1≤5.

[0007] In a preferred embodiment of the control method for the aforementioned washing equipment, the squeezing value of the active squeezing part is detected by a pressure sensor or a torque sensor.

[0008] In the preferred embodiment of the control method for the above-mentioned washing equipment, when the current value of the motor is obtained, the step of "controlling the switching of the squeezing direction of the active squeezing part based on the obtained current value of the motor, the rotation angle of the motor, or the squeezing value of the active squeezing part" further includes: real-time detection of the current value of the motor; when the current value of the motor reaches its maximum value and begins to decrease for a time ΔT2, controlling the switching of the squeezing direction of the active squeezing part; wherein, ΔT2≥0.

[0009] In the preferred embodiment of the control method for the above-mentioned washing equipment, when the obtained value is the rotation angle of the motor, the step of "controlling the switching of the squeezing direction of the active squeezing part based on the obtained current value of the motor, the rotation angle of the motor, or the squeezing value of the active squeezing part" further includes: real-time detection of the rotation angle of the motor; stopping when the rotation angle of the motor reaches a preset value, and controlling the switching of the squeezing direction of the active squeezing part.

[0010] In the preferred embodiment of the control method for the above-mentioned washing equipment, after the step of "stopping when the rotation angle of the motor reaches a preset value and controlling the switching of the squeezing direction of the active squeezing part", the control method further includes: detecting the rotation angle of the squeezed part; and updating the preset value of the rotation angle of the active squeezing part in real time based on the rotation angle of the squeezed part.

[0011] In a preferred embodiment of the control method for the above-mentioned washing equipment, the squeezed part includes a first side and a second side, the first water passage includes a forward passage, the water outlet of the forward passage on the first side is higher than the water outlet on the second side, the first water passage includes a reverse passage, the water outlet of the reverse passage on the first side is lower than the water outlet on the second side.

[0012] In the preferred embodiment of the control method for the above-mentioned washing equipment, the active squeezing section is provided with a second water passage.

[0013] In a preferred embodiment of the control method for the aforementioned washing equipment, one of a first protrusion / first groove is provided on the outer surface of the active squeezing part adjacent to the washing tub, and correspondingly, another of a first protrusion / first groove is provided on the inner surface of the washing tub, wherein the first protrusion matches the first groove, and / or, one of a second protrusion / second groove is provided on the outer surface of the squeezed part adjacent to the washing tub, and correspondingly, another of a second protrusion / second groove is provided on the inner surface of the washing tub, wherein the second protrusion matches the second groove.

[0014] In a preferred embodiment of the control method for the aforementioned washing equipment, at least one of the active squeezing part and the squeezed part is detachably connected.

[0015] It will be understood by those skilled in the art that, in the technical solution of the present invention, the washing device includes a washing tub, and a motor is provided outside the washing tub; an active squeezing part and a squeezed part are provided inside the washing tub; the active squeezing part is drivenly connected to the output end of the motor so that the active squeezing part can move closer to or away from the squeezed part as the output end of the motor rotates; the squeezed part is slidably sleeved with the output end of the motor so that the squeezed part does not rotate as the output end of the motor rotates, and the squeezed part can rotate relative to the washing tub; a first water passage is provided on the squeezed part, and the washing water flowing into the water passage washes the washing load after flowing out of the water passage; the control method includes the following steps: acquiring the current value of the motor, the rotation angle of the motor, or the squeezing value of the active squeezing part; and controlling the switching of the squeezing direction of the active squeezing part based on the acquired current value of the motor, the rotation angle of the motor, or the squeezing value of the active squeezing part.

[0016] Through the above-described configuration, the control method of the present invention achieves excellent washing results, preventing clothes from tangling and reducing wear. In a washing area of ​​the same size, compared to a structure where the passive squeezing part is fixed, the active squeezing part in the present invention requires a smaller rotation angle to maintain the squeezing force, resulting in a faster washing speed. Furthermore, the rotation of the passive squeezing part after the washing load is squeezed enhances its free-flowing effect, which is beneficial for the next squeezing wash, thus improving the washing effect and cleaning ratio. Attached Figure Description

[0017] The washing apparatus and its control method according to the present invention will now be described with reference to the accompanying drawings. In the drawings:

[0018] Figure 1 This is a schematic diagram of the washing equipment of the present invention;

[0019] Figure 2 for Figure 1A schematic diagram of the structure of the washing tub with the side wall removed;

[0020] Figure 3 This is a schematic diagram of the reverse channel of the washing device of the present invention;

[0021] Figure 4 This is a schematic diagram of the forward channel of the washing device of the present invention;

[0022] Figure 5 This is a schematic diagram of another embodiment of the washing device of the present invention, showing the first protrusion and the first groove.

[0023] Figure 6 This is a schematic diagram of the control method of the present invention;

[0024] Figure 7 for Figure 6 A schematic diagram of the first embodiment;

[0025] Figure 8 for Figure 6 A schematic diagram of the second embodiment;

[0026] Figure 9 for Figure 6 A schematic diagram of the third embodiment.

[0027] List of reference numerals:

[0028] 1-Washing tub, 2-Motor

[0029] 3-Active extrusion section, 31-Second water passage, 32-Third side surface, 33-Fourth side surface,

[0030] 4-The part being squeezed, 41-First water passage, 411-Forward passage, 412-Reverse passage, 42-First side, 43-Second side.

[0031] 5-shaft, 6-first protrusion, 7-first groove, 8-second protrusion, 9-second groove. Detailed Implementation

[0032] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the specification describes the present invention using a fan-shaped plate as an example where both the active extrusion part and the extruded part are fan-shaped plates, the present invention can obviously employ other similar means, such as either the active extrusion part or the extruded part being a cuboid, or both the active extrusion part and the extruded part being cuboids, as long as the active extrusion part and the extruded part can effectively extrude the washing load.

[0033] It should be noted that in the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, it should be noted that in the description of this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, etc. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] To address the problems of clothes easily getting tangled, suffering severe wear and tear, and having unsatisfactory washing results during existing laundry processes, this invention provides a control method for a laundry device. This control method requires a special laundry device; therefore, to more clearly explain the control method of this invention, it is necessary to first provide a detailed description of the laundry device involved in this invention.

[0035] like Figure 1-4 As shown, the washing equipment includes a washing tub 1, with a motor 2 located outside the tub 1. Inside the tub 1 are an active squeezing section 3 and a squeezed section 4. To improve the squeezing effect, both the active squeezing section 3 and the squeezed section 4 can be fan-shaped plates. The active squeezing section 3 is driven to the output end of the motor 2, allowing it to move closer to or further away from the squeezed section 4 as the motor 2 rotates. A shaft 5 is also provided between the motor 2 and the active squeezing section 3. One end of the shaft 5 is driven to the output end of the motor 2, and the other end enters the tub 1 and is driven to the active squeezing section 3. The squeezed section 4 is slidably sleeved with the output end of the motor 2, i.e., slidably sleeved with the shaft 5, so that the squeezed section 4 does not rotate with the output end of the motor 2, but can rotate relative to the tub 1.

[0036] like Figure 2 As shown, a first protrusion 6 is provided on the bottom surface of the outer surface of the active extrusion part 3, and a first groove 7 is provided on the bottom surface of the inner surface of the washing tub 1. The first protrusion 6 matches the first groove 7. The longitudinal section of the first protrusion 6 is rectangular, and correspondingly, the longitudinal section of the first groove 7 is a rectangular groove. The first protrusion 6 is a fan-shaped annular protrusion, and the first groove 7 is an annular groove. A second protrusion 8 is provided on the bottom surface of the outer surface of the extruded part 4, and a second groove 9 is provided on the bottom surface of the inner surface of the washing tub 1. The second protrusion 8 matches the second groove 9. Furthermore, the second groove 9 can overlap with the first groove 7, forming the same groove, and correspondingly, the structure of the second protrusion 8 is the same as that of the first protrusion 6.

[0037] like Figure 1-4As shown, the active extrusion section 3 is provided with a second water passage 31. The extruded section 4 is provided with a first water passage 41. The extruded section 4 includes a first side 42 and a second side 43. The first water passage 41 includes a forward passage 411, where the water inlet of the forward passage 411 on the first side 42 is higher than the water inlet of the second side 43; the first water passage 41 also includes a reverse passage 412, where the water inlet of the reverse passage 412 on the first side 42 is lower than the water inlet of the second side 43. Multiple forward passages 411 and reverse passages 412 are provided, and the forward passages 411 at the same height are parallel to each other, as are the reverse passages 412 at the same height.

[0038] The advantages of the above-described configuration are as follows: In this embodiment, the washing equipment adopts a squeezing washing method, which achieves a better washing effect during the squeezing washing process and prevents the washing load (such as clothes) from tangling. The invention also includes a first protrusion 6 and a first groove 7, with the first protrusion 6 entering the first groove 7; a second protrusion 8 and a second groove 9 are also provided, with the second protrusion 8 similarly entering the second groove 9, thus breaking the originally long gap into multiple shorter gaps. Therefore, even when there are many or heavy clothes at the bottom of the tub, the small gaps make it difficult for clothes to enter. This embodiment effectively prevents clothes from embedding in the gap between the bottom of the washing tub and the active squeezing part 3 and the squeezed part 4, avoiding shortening the service life of the clothes due to wear or pulling.

[0039] In this embodiment, the area enclosed by the third side 32 of the active squeezing part 3 when rotating clockwise, the second side 43 of the squeezed part 4, and the washing tub 1 is called the right washing chamber; correspondingly, the area enclosed by the fourth side 33 of the active squeezing part 3 when rotating counterclockwise, the first side 42 of the squeezed part 4, and the washing tub 1 is called the left washing chamber. The washing load is divided into two parts and placed in the right washing chamber and left washing chamber of the washing tub 1 respectively. Under the action of the motor 2, the third side 32 and the fourth side 33 of the active squeezing part 3 squeeze the washing load with the second side 43 and the first side 42 of the squeezed part 4, respectively.

[0040] When the active squeezing part 3 rotates clockwise, the distance between the third side 32 of the active squeezing part 3 and the second side 43 of the squeezed part 4 continuously shortens. As a result, the water level in the right washing chamber of the washing tub 1 temporarily rises slightly. The washing load in the right washing chamber of the washing tub 1 is subjected to the squeezing effect of the third side 32 of the active squeezing part 3 and the second side 43 of the squeezed part 4. At the same time, some of the washing water in the right washing chamber passes through the squeezed part 4. Most of the washing water that passes through passes through the reverse channel 412 on the second side 43 of the squeezed part 4 and is ejected from the first side 42 of the squeezed part 4 under the action of gravity. This impacts the washing load in the left washing chamber of the washing tub 1, causing the washing load in the left washing chamber to be washed, shifted, or tumbled. This disperses the washing load in the left washing chamber that was previously squeezed into a clump by the active squeezing part 3 and moves it away from the squeezed part 4, preventing it from accumulating near the squeezed part 4.

[0041] When the active squeezing section 3 rotates counterclockwise, the distance between the fourth side 33 of the active squeezing section 3 and the first side 42 of the squeezed section 4 shortens. This allows the washing water to pass through the forward channel 411 on the first side 42 of the squeezed section 4 and be ejected from the second side 43 of the squeezed section 4. The washing load in the left washing chamber can move with the active squeezing section 3, thus maintaining the washing effect. During each squeezing wash, the washing load is in a different position, allowing different parts of the washing load to be washed. However, if the washing load in the left washing chamber could only remain concentrated near the squeezed section 4, the squeezing effect between the fourth side 33 of the active squeezing section 3 and the first side 42 of the squeezed section 4 would be significantly weakened. Therefore, this embodiment avoids the situation where only the parts of the washing load initially squeezed by the active squeezing section 3 and the squeezed section 4 are excessively and repeatedly squeezed and washed, while other parts receive insufficient squeezing and washing due to minimal positional changes in the washing load.

[0042] Furthermore, a second water passage 31 is provided on the active squeezing part 3, so that during the rotation of the active squeezing part 3 and the squeezing process with the squeezed part 4, a portion of the water can pass through the second water passage 31, which can improve the washing effect on clothes and prevent the washing water level from rising too high and overflowing.

[0043] Driven by motor 2, the active squeezing part 3 rotates inside the washing tub 1, while the squeezed part 4 does not rotate with it. For example, when the active squeezing part 3 rotates clockwise and works with the squeezed part 4 to squeeze the clothes, the squeezed part 4 also rotates clockwise under the force, moving away from the active squeezing part 3. Simultaneously, the squeezed part 4 can also squeeze clothes placed in another washing chamber, allowing the squeezed clothes to unfold freely. The active squeezing part 3 then rotates counterclockwise until it again works with the squeezed part 4 to squeeze the washing load. In a washing area of ​​the same size, because the active squeezing part 3 applies a force to the squeezed part 4 when rotating clockwise, causing the squeezed part 4 to rotate clockwise by a certain angle, compared to a fixed squeezed part 4, the angle of rotation required for the active squeezing part 3 to rotate counterclockwise until it again squeezes the clothes is reduced. This decreases the required angle of rotation for the active squeezing part 3 to rotate counterclockwise, thus improving washing efficiency and reducing energy consumption. A good washing effect can be achieved by the continuous reciprocating rotation of the active squeezing section 3.

[0044] For example, in an alternative embodiment, the output end of the motor 2 can also be directly driven and connected to the active squeezing part 3. This can be achieved by the output end of the motor 2 entering the washing tub 1 and directly driving and connecting to the active squeezing part 3 (not shown in the figure), or by the active squeezing part 3 extending out of the washing tub 1 and directly driving and connecting to the motor 2 (not shown in the figure), among other connection methods. This also achieves the effect of allowing the active squeezing part 3 to move closer to or further away from the squeezed part 4 as the output end of the motor 2 rotates (not shown in the figure).

[0045] For example, in another alternative implementation, such as Figure 5 As shown, the longitudinal section of the first protrusion 6 can also be trapezoidal, and correspondingly, the longitudinal section of the first groove 7 can be a trapezoidal groove. In this way, the first protrusion 6 is less likely to fall out of the first groove 7 when it moves in the first groove 7, thus improving the stability of the rotation of the active extrusion part 3. Correspondingly, the second protrusion 8 can also have the same trapezoidal longitudinal section as the first protrusion 6, and the structure of the second groove 9 is also the same as that of the first groove 7 (not shown in the figure).

[0046] For example, in another alternative embodiment, a first groove 7 may be provided on the bottom surface of the outer surface of the active squeezing part 3, and a first protrusion 6 (not shown in the figure) may be provided on the bottom surface of the inner surface of the washing tub 1.

[0047] For example, in another alternative embodiment, a second groove 9 may be provided on the bottom surface of the outer surface of the squeezed part 4, and a second protrusion 8 (not shown in the figure) may be provided on the bottom surface of the inner surface of the washing tub 1.

[0048] For example, in another alternative embodiment, the first protrusion 6 and the first groove 7 may also be provided simultaneously or separately on the side of the active squeezing part 3 and the washing tub 1 (not shown in the figure).

[0049] For example, in another alternative embodiment, the active squeezing part 3 and the squeezed part 4 can also be configured to be detachably connected. When the active squeezing part 3 and the squeezed part 4 malfunction, need to be cleaned, or need to be replaced with other models (such as different hardness), the active squeezing part 3 and the squeezed part 4 can be easily disassembled and installed from the washing tub 1.

[0050] For example, in another alternative embodiment, the second protrusion 8 and the second groove 9 may also be provided simultaneously or separately on the side of the squeezed part 4 and the washing tub 1 (not shown in the figure).

[0051] For example, in another alternative embodiment, the second water passage 31 (not shown in the figure) may not be provided on the active extrusion section 3.

[0052] For example, in another alternative implementation, depending on the actual situation, the forward channels 411 may not all be parallel, and the reverse channels 412 may not all be parallel. The heights of the forward channels 411 and the reverse channels 412 may also be adjusted.

[0053] For example, in another alternative embodiment, the connection between the shaft 5 and the active extrusion part 3 can also be that the shaft 5 is a spline, and a groove matching the spline is provided in the active extrusion part 3, with the spline located in the groove. The connection between the shaft 5 and the active extrusion part 3 can also be an interference fit or a bolted connection (not shown in the figure), etc.

[0054] For example, in another alternative embodiment, a filter screen (not shown in the figure) can also be provided in the second water passage 31 and the first water passage 41 to avoid the washing efficiency being affected by various impurities clogging the water passage during the washing process.

[0055] For example, in another alternative embodiment, the active squeezing part 3 and the squeezed part 4 can also be configured as two parts composed of materials with different hardnesses, i.e., the active squeezing part 3 and the squeezed part 4 each have a hard squeezing part on one side and a soft squeezing part on the other side (not shown in the figure). Furthermore, during the squeezing process, the active squeezing part 3 changes from a certain speed to zero, while the squeezed part 4 changes from zero speed to a certain speed and then back to zero. Therefore, the squeezing effect on the clothing is different when the active squeezing part 3 and the squeezed part 4 use materials with different hardnesses. Through different combinations, four types of washing chambers can be achieved: hard active squeezing part and hard squeezed part, hard active squeezing part and soft squeezed part, soft active squeezing part and hard squeezed part, and soft active squeezing part and soft squeezed part. Clothes of different materials can be placed into the corresponding washing chambers for washing.

[0056] The specific structure of the washing device of the present invention has been described above. The control method of the present invention is designed based on the above scheme or its simple modifications. The control method of the washing device of the present invention will be described next, such as... Figure 6 As shown, it includes the following steps:

[0057] S01. Obtain the current value of the motor, the rotation angle of the motor, or the extrusion value of the active extrusion unit;

[0058] S02. Based on the acquired current value of the motor, the rotation angle of the motor, or the extrusion value of the active extrusion unit, control the switching of the extrusion direction of the active extrusion unit.

[0059] like Figure 7 As shown, the first embodiment of the control method for the washing equipment of the present invention will be described next. The control method specifically includes the following steps:

[0060] S11. Real-time detection of the extrusion value of the active extrusion section.

[0061] The extrusion value of the active extrusion section is detected and obtained by a pressure sensor or a torque sensor. The pressure sensor can be installed on the active extrusion section or the extruded section, and the torque sensor can be installed on the output end of the motor.

[0062] S12. When the extrusion value of the active extrusion unit reaches its maximum value and begins to decrease by ΔT1 time, the extrusion direction of the active extrusion unit is switched, where 0≤ΔT1≤5.

[0063] When the pressure value of the active extrusion unit reaches its maximum value and begins to decrease, it indicates that the active extrusion unit has completed the extrusion in the current extrusion direction. If ΔT1 = 0 at this time, the active extrusion unit will immediately rotate in the opposite direction. However, in actual judgment, it is impossible to instantly determine that this pressure value is the maximum value. Therefore, a delay of ΔT1 is set as a buffer.

[0064] like Figure 8 As shown, the second embodiment of the control method for the washing equipment of the present invention will be described next. The control method specifically includes the following steps:

[0065] S21. Real-time detection of motor current value;

[0066] S22. When the motor current reaches its maximum value and begins to decrease for a time ΔT2, control the switching of the extrusion direction of the active extrusion section, where ΔT2≥0.

[0067] When the motor current reaches its maximum value and then begins to decrease, it indicates that the active extrusion section has completed the extrusion in the current extrusion direction. Next, the active extrusion section rotates in the opposite direction. The design principle of △T2 is the same as that of △T1, and will not be described again.

[0068] like Figure 9 As shown, the third embodiment of the control method for the washing equipment of the present invention will be described next. The control method specifically includes the following steps:

[0069] S31. Real-time detection of the motor's rotation angle;

[0070] The rotation angle of the motor can be detected by an angle sensor.

[0071] S32. When the rotation angle of the motor reaches the preset value, it stops and controls the switching of the extrusion direction of the active extrusion section.

[0072] When the rotation angle of the motor reaches the preset value, it indicates that the active extrusion unit has completed the extrusion in the current extrusion direction, and then the active extrusion unit rotates in the opposite direction.

[0073] S33. Detect the rotation angle of the compressed part;

[0074] S34. Update the preset value of the rotation angle of the active extrusion part in real time based on the rotation angle of the extruded part.

[0075] In this embodiment, since the squeezed part also rotates under force when the active squeezing part completes the squeezing, the angle required for the active squeezing part to rotate in the opposite direction and rotate with the squeezed part again is reduced. However, due to many factors such as the amount of laundry and the squeezing position during the washing process, the rotation angle of the squeezed part also changes. Therefore, the preset value of the rotation angle of the active squeezing part also frequently changes. Thus, this embodiment ensures the squeezing washing effect by detecting the rotation angle of the squeezed part and updating the preset value of the rotation angle of the active squeezing part in real time for the next cycle, thereby shortening the squeezing time, increasing the squeezing frequency, and improving the washing effect.

[0076] In summary, the present invention can achieve good washing results, clothes are less likely to tangle or get stuck in the gap between the squeezing part and the washing tub, and the wear is low. Furthermore, the rotation of the squeezed part can reduce the rotation angle of the active squeezing part, thereby achieving energy saving and increasing the squeezing force. The first water passage can rinse the clothes to avoid clothes from gathering and affecting the squeezing and washing effect.

[0077] Those skilled in the art will understand that the control method for the aforementioned washing equipment also includes other known structures, such as processors, controllers, and memories. These memories include, but are not limited to, random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), volatile memory, non-volatile memory, serial memory, parallel memory, or registers. Processors include, but are not limited to, CPLD / FPGA, DSP, ARM processors, and MIPS processors. To avoid unnecessarily obscuring the embodiments of the present invention, these known structures are not shown in the accompanying drawings.

[0078] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A control method for a washing machine, characterized in that, The washing equipment includes a washing tub, and a motor is provided on the outside of the washing tub; the washing tub is provided with an active squeezing part and a squeezed part. The active extrusion unit is driven to the output end of the motor so that the active extrusion unit can move closer to or away from the extruded part as the output end of the motor rotates. The squeezed part is slidably sleeved with the output end of the motor so that the squeezed part does not rotate with the rotation of the output end of the motor, and the squeezed part can rotate relative to the washing tub; A first water passage is provided on the squeezed part, and the washing water flowing into the water passage washes the washing load after flowing out of the water passage; The control method includes the following steps: Obtain the current value of the motor, the rotation angle of the motor, or the extrusion value of the active extrusion unit; Based on the obtained current value of the motor, the rotation angle of the motor, or the extrusion value of the active extrusion unit, when it is determined that the active extrusion unit has completed extrusion in the current extrusion direction, the extrusion direction of the active extrusion unit is switched. Specifically, when the active squeezing part rotates clockwise and squeezes the clothes together with the squeezed part, the squeezed part also rotates clockwise under the force and moves away from the active squeezing part. Moreover, while the squeezed part is rotating, it can also squeeze the clothes placed in another washing chamber.

2. The control method for the washing equipment according to claim 1, characterized in that, When the obtained value is the compression value of the active compression unit, the step of "controlling the switching of the compression direction of the active compression unit when it is determined that the active compression unit has completed compression in the current compression direction based on the obtained current value of the motor, the rotation angle of the motor, or the compression value of the active compression unit" further includes: Real-time detection of the compression value of the active compression section; When the squeezing value of the active squeezing unit reaches its maximum value and begins to decrease for a time ΔT1, the squeezing direction of the active squeezing unit is switched. Where 0 ≤ △T1 ≤ 5.

3. The control method for the washing equipment according to claim 2, characterized in that, The compression value of the active compression section is detected by a pressure sensor or a torque sensor.

4. The control method for the washing equipment according to claim 1, characterized in that, When the acquired value is the current value of the motor, the step of "controlling the switching of the extrusion direction of the active extrusion unit when it is determined that the active extrusion unit has completed extrusion in the current extrusion direction based on the acquired current value of the motor, the rotation angle of the motor, or the extrusion value of the active extrusion unit" further includes: The current value of the motor is detected in real time; When the current value of the motor reaches its maximum value and begins to decrease for a time ΔT2, the extrusion direction of the active extrusion section is switched. Where △T2≥0.

5. The control method for the washing equipment according to claim 1, characterized in that, When the obtained value is the rotation angle of the motor, the step of "controlling the switching of the compression direction of the active compression unit when it is determined that the active compression unit has completed compression in the current compression direction based on the obtained current value of the motor, the rotation angle of the motor, or the compression value of the active compression unit" further includes: The rotation angle of the motor is detected in real time; The motor stops rotating when it reaches a preset angle, and the extrusion direction of the active extrusion unit is switched.

6. The control method for the washing equipment according to claim 5, characterized in that, After the step of "stopping the motor when its rotation angle reaches a preset value and controlling the switching of the extrusion direction of the active extrusion unit", the control method further includes: Detect the rotation angle of the compressed part; The preset value of the rotation angle of the active extrusion part is updated in real time based on the rotation angle of the extruded part.

7. The control method for the washing equipment according to claim 1, characterized in that, The compressed portion includes a first side and a second side. The first water passage includes a forward passage, wherein the water outlet of the forward passage on the first side is higher than the water outlet on the second side. The first water passage also includes a reverse passage, wherein the water outlet of the reverse passage on the first side is lower than the water outlet on the second side.

8. The control method for the washing equipment according to claim 1, characterized in that, The active extrusion section is equipped with a second water passage.

9. The control method for the washing equipment according to claim 1, characterized in that, The outer surface of the active squeezing section adjacent to the washing tub is provided with one of a first protrusion / first groove, and correspondingly, the inner surface of the washing tub is provided with the other of a first protrusion / first groove, wherein the first protrusion matches the first groove, and / or, One of a second protrusion / second groove is provided on the outer surface of the squeezed part adjacent to the washing tub, and the other of a second protrusion / second groove is provided on the inner surface of the washing tub, wherein the second protrusion matches the second groove.

10. The control method for the washing equipment according to claim 1, characterized in that, At least one of the active extrusion part and the extruded part is detachably connected.

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